Device for automatically regulating combustion in hot-water and hot-air heating apparatus



(No Model.) 2 Sheets-Sheet 1.

J. 0. F. ATSATT.

DEVICE FOR AUTOMATICALLY REGULATING COMBUSTION IN HOT WATER AND HOT AIR HEATING APPARATUS.

No. 406,018. Patented July 2, 1889.

(No Model.) 2 Sheets-Sheet 2.

J. 0. IE. ATSATT. DEVICE FOR AUTOMATICALLY REGULATING COMBUSTION IN HOT WATER AND HOT AIR HEATING APPARATUS.

Patented July 2, 1889.

UNITED STATES PATENT Orrrcn.

J. CHARLES F. A'lSA l, OF MA'lTAPOISEIT, MASSACHUSETTS.

DEVICE FOR AUTOMATICALLY REGULATING COMBUSTION IN HOT-WATER AND HOT-AIR HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 406,018, dated July 2, 1889.

Application filed February 21, 1889. Serial No. 300,968. (No model.)

To all whom it may concern.-

Be it known that I, J. CHA RLES F. ATSATT, a citizen of the United States, residing at Mattapoisett, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Devices f or Automatically Regulating Combustion in Hotater and Hot-Air Heating Apparatus, of which the following is a specification.

The object of my invention is to provide an automatic regulator of combustion in hotwater and hot-air heating apparatus, which will be sensitive to a great variety of temperatures, simple and durable in construction, easily and quickly attachable to the heating apparatus, and one which can be atforded to the consumer at a comparatively slight expense.

To this end my invention consists in an air-chamber adapted to be clamped or otherwise attached to a hot-water or hot-air heating apparatus and provided with a flexible diaphragm and mechanism intermediate be tween said diaphragm and the damper or draft opening of said heating apparatus, whereby the expansion and contraction of the air in said chamber are caused to regulate said damper or di'aftopeniiig.

In the accompanying drawings, Figure 1 represents a view of my invention clamped to the main pipe of a hot-water heating apparatus. Fig. 2 is a View in vertical section of the same. Fig. represents an elevation of a heating apparatus with my invention at tached.

Similar letters refer to similar parts in the several views.

1) represents a hollow chamber for containing air, which may be of any convenient form, best adapted for attaching to the heat ing apparatus. In this instance it has a concave side to fit the curve of the pipe to which it is clamped.

(0 represents a section of the main pipe of a hot-water heating apparatus, to which the chamberb is secured by the clamp c. The chamber 1) is provided with the stop-cock p, in order that it may be charged with more than one atmosphere, if desired. The chan1- her 1) is also provided with a flexible diaphragm 71., secured to and making an airtight joint with the top or mouth of the broad shallow bowl 1'. The side of the bowl is provided with the standard f, to the top of which is pivoted one end of the lever Z, the other end being provided with the weights to. The pillar g rests on the diaphragm 71, with its top bearing against the under side of the lever Z. (Z is a wire connecting the lever l with the damper or d raft-opening of the heating apparatus.

The operation of my invention is as follows: The air-chamber 1), with its attachments, is clamped or otherwise attached to some convenient part of the heating apparatus in such a manner that a considerable portion of its surface shall come in close con tact with the surface of the heating apparatus, and the lever Z connected with the damper or draft-opening. TVhen the tem perature of the heating apparatus has risen to a certain degree, the air in the chamber has expanded sufliciently to swell the diaphragm 7t outwardly, and thus by means of the intermediate mechanism regulate the damper or draft-opening. If it is desired to regulate the temperature of the heating apparatus to a lower degree, some or all of the weight w is removed from the end of the lever 1, wheirit is obvious that a less expansive force of the air in the chamber will cause the damper or draft-opening to be regulated. If it is desired to regulate the temperature to a still lower degree, the chamber is charged through the stop-cock p with more than one atmosphere, when a Very moderate degree of heat will cause the dense air in the chamber to expand sufficiently to expand the diaphragn-i, and thus regulate the draft.

Thus it will be seen that by the use of an air-chamber the device is rendered extremely sensitive to even moderate temperatures.

Having thus described. my invention, what I claim, and desire to secure by Letters Patent, 1s-

A device for automatically regulatingcombustion in hot-water and hot-air heating apparatus, consisting of the air chamber I), having one of its sides concaved to conform to the convex surface of the main pipe of said apparatus and adapted to be clamped thereto, sion and contraction of the air in said airand provided with the cook 10, in combination chamber closes or opens said damper or draft- With the bowl 1', connected with said air-chamopening, allas shown and described. ber and provided with flexible diaphragm h,

5 and mechanism intermediatebet-Ween said dia- WVitnesses:

phragm and the damper or draft-opening -0f HENRY W. MASON, said heating apparatus, whereby the BXPELII- JAMES L. GILLINGHAM.

J. CHAS. F. ATSATT. 

